The singer’s rep re-confirmed to CNN that she didn’t appear for a rehearsal because she was “was sick, so she needed to save her voice for the live show.”

But Chris Brown, who was born on Cinco de Mayo, said he was with Rihanna in a luxury hotel only a few blocks away from 30 Rock. “They were ‘celebrating’ his birthday together,” a source close to Brown told WWN.

The couple recently collaborated on Rihanna’s single “Birthday Cake,” a snippet of which she performed solo on “SNL.”